VT60 Power Amplifier

VT60 Specifications:

POWER OUTPUT: 50 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 50 watts, below .05% at 1 watt.

Approximate actual power available at "clipping" 52 watts (1kHz). (Note that actual power output is dependent upon both line voltage and "condition" i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)

POWER BANDWIDTH: (-3dB points) 15Hz to 40kHz.

FREQUENCY RESPONSE: (-3dB points at 1 watt) 3Hz to 40 kHz.

INPUT SENSITIVITY: 1.05V RMS for rated output.

INPUT IMPEDANCE: 100K ohms unbalanced.

OUTPUT REGULATION: Approximately 0.6dB 16 ohm load to open circuit (Damping factor approximately 14).

OVERALL NEGATIVE FEEDBACK: 19dB.

SLEW RATE: 7 volts/microsecond.

RISE TIME: 10 microseconds.

HUM & NOISE: Less than 0.5mV RMS - 95dB below rated output (IHF weighted, input shorted).

POWER SUPPLY ENERGY STORAGE: Approximately 184 joules.

POWER REQUIREMENTS: 105-125VAC 60Hz (210-250VAC 50Hz) 265 watts at rated output, 300 watts maximum, 175 watts at "idle".

TUBES REQUIRED: 2 - Matched pair 6550B - Power Output; 2 - 6922 Driver; 1 - 6922 input.

DIMENSIONS (VT60): 14" (35.6 cm) W x 7" (17.8 cm) H x 13.3" (33.8 cm) D. Output connectors extend 1" (2.5 cm) to the rear.

WEIGHT (VT60): 33 lbs. (15.0 kg) Net; 47 lbs. (21.4 kg) Shipping.

Specifications subject to change without notice.